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| author | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-11-25 16:22:58 +0000 |
|---|---|---|
| committer | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-11-25 16:22:58 +0000 |
| commit | 99afcf5bf6d506de4bd8e22a60ec08818d4cd895 (patch) | |
| tree | c140a457e34b2af0c7fa03e792c55ae2bc1f1543 /target | |
| parent | e3d7c9b6f5e62fdbec05fd5f2e1ef59aa4a14673 (diff) | |
| download | openwrt-99afcf5bf6d506de4bd8e22a60ec08818d4cd895.tar.gz openwrt-99afcf5bf6d506de4bd8e22a60ec08818d4cd895.zip | |
AA: generic: ar8216: add missing locking calls
Backport of r34281.
Fixes the following lockdep warning:
[ 19.160000] ------------[ cut here ]------------
[ 19.160000] WARNING: at drivers/net/phy/ar8216.c:322 ar8216_rmw+0x54/0xa4()
[ 19.170000] Modules linked in: nf_defrag_ipv4 nf_conntrack ehci_hcd
sd_mod pppox ipt_REJECT xt_TCPMSS ipt_LOG xt_comment xt_multip
ort xt_mac xt_limit iptable_mangle iptable_filter ip_tables xt_tcpudp
x_tables ppp_async ppp_generic slhc ath9k(O) ath9k_common(O) at
h9k_hw(O) ath(O) mac80211(O) usbcore usb_common scsi_mod nls_base crc7
crc_itu_t crc_ccitt cfg80211(O) compat(O) arc4 aes_generic cry
pto_blkcipher cryptomgr aead crypto_hash crypto_algapi ledtrig_timer
ledtrig_default_on leds_gpio gpio_button_hotplug(O)
[ 19.210000] Call Trace:
[ 19.220000] [<8028dc38>] dump_stack+0x8/0x34
[ 19.220000] [<80072da0>] warn_slowpath_common+0x78/0xa4
[ 19.230000] [<80072de4>] warn_slowpath_null+0x18/0x24
[ 19.230000] [<801de820>] ar8216_rmw+0x54/0xa4
[ 19.240000] [<801df460>] ar8216_mib_capture+0x70/0xd0
[ 19.240000] [<801df944>] ar8xxx_mib_work_func+0x34/0x98
[ 19.250000] [<80089a7c>] process_one_work+0x28c/0x460
[ 19.250000] [<8008a630>] worker_thread+0x22c/0x334
[ 19.260000] [<8008e544>] kthread+0x88/0x90
[ 19.260000] [<80065020>] kernel_thread_helper+0x10/0x18
[ 19.270000]
[ 19.270000] ---[ end trace 22e9d696adfa6a08 ]---
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@34369 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target')
| -rw-r--r-- | target/linux/generic/files/drivers/net/phy/ar8216.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/target/linux/generic/files/drivers/net/phy/ar8216.c b/target/linux/generic/files/drivers/net/phy/ar8216.c index a69d038ce..380122560 100644 --- a/target/linux/generic/files/drivers/net/phy/ar8216.c +++ b/target/linux/generic/files/drivers/net/phy/ar8216.c @@ -373,9 +373,11 @@ ar8216_mib_capture(struct ar8216_priv *priv) else mib_func = AR8216_REG_MIB_FUNC; + mutex_lock(&priv->reg_mutex); /* Capture the hardware statistics for all ports */ ar8216_rmw(priv, mib_func, AR8216_MIB_FUNC, (AR8216_MIB_FUNC_CAPTURE << AR8216_MIB_FUNC_S)); + mutex_unlock(&priv->reg_mutex); /* Wait for the capturing to complete. */ ret = ar8216_reg_wait(priv, mib_func, AR8216_MIB_BUSY, 0, 10); |